Machine for filling containers



Jan. 5 1926.

1,568,444 R. P. DE VRIES MACHINE FOR FILLING CONTAINERS Filed April 18, 1924 3 Sheets-Sheet 1 INVENTOR. Raider fifieii'ies,

BY a) ATTORNEYS. 5

Jail. 5 1926.

R. P. DE VRIES MACHINE FOR FILLING CONTAINERS Filed April 18, 1924 3 Sheets-Sheet 2 I) m flm V8 m M T R A a w. .m/ M

Jan. 5 1926. 1,568,444 R. P. DE VRIES MACHINE FOR FILLING CONTAINERS Filed April 18, 1924 3 Sheet-Sheet 5 INVENTOR. 1? giigzlarl fie 76pm ii /w @Aua ATTORNEYS.

- by weight.

Patented Jan. 5, 1926.

UNITED STAT.

REINIER 3. DE VFJIES, F MELROSE, TtIASSACH-USETTS- JACZLLJE FOB. FILLING CQNTAINERS.

Application. filed April 18, 1924.

To all whomit may conce n Be it known that I, REZNI'ER P. DE Vnms, a citizen of the United States, residing at Melrose, in the county of liliiddlcset: and State of Massachusetts, have invented certain new and useful Improvements in Machines for Filling Containers: and do her by declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

This invention has reference to improvements in machines for charging cartons or other suitable containers with granular material, and apportioning the cha content The improved machine is especially designed to handle moist granular materials, such, for example, as soft sugar.

The invention has for its principal object to provide a simple construction of machine having a novel means for controlling the delivery of the main or initial bulk of material to be packed in a given container, and a second means, operating in conjunction with a weighing mechanism, for controlling the delivery to said container of such auditional quantity of material as may be neces sary to bring the total content of the container up to a predetermined weight.

The invention h as for a further object, to provide in connection with the material delivery mechanism of the machine, a novel construction and arrangement of material feeding elements adapted more especially to assure the delivery of moist granular materials, such as soft sugar, without clogging or interruption. The said material feeding elements providing, in the one instance, a means for intermittently delivering an initial bulk of the material, and, in the other instance, a continuous flow or gravitation of the material in comparatively reduced mass whereby the initial bulk may be added to in order to bring the charged mass up to a desired predetermined total weight. In combination with the feeding elements which produce a continuous flow or gravitation of the material in reduced mass, the invention provides a duplex weighing mechanism, and a novel automatic diverting means or transfer pan which receives the stream of mate gin, and directs the .amc into a container on Serial No. 707,329.

one or the other of the weighing devices, the actuation of a given weighing mechanism operating through a novel electro-mechanical control means to automatically actuate the desired shifting of the diverting means or transfer pan as occasion may require.

Other objects of this invention, not at this time more particularly enumerated, will be clearly understood from the following detailed description of the same.

lVith the various objects of this invention in view, the same consists primarily, in the novel construction of carton or container charging machine hereinafter set forth; and the invention consists, furthermore, in the novel arrangements and combinations of the various devices and parts, as well as in the details of the construction of the same, all of which will be hereinafter more fully described, and then finally embodied in the claims appended hereto.

The invention is clearly illustrated in the accompanying drawings, in which Figure 1 is a front elevation of the novel carton or container charging machine, made according to and embodying the principles of this invention. Figure 2 is a side elevation of the same. Figure 3 is a diagrammatic view of the electrical circuits involved in the electromechanical control means for the transfer pan of the machine. Figure 4 is a detail horizontal section,'taken on line 4-4 in Figure 1 and drawn on an enlarged scale. Figure 5 is a fragmentary transverse vertical section, drawn on an enlarged scale, and illustrating the continuous material feed elements in combination with the transfer pan mechanism. Figure 6 is a detail horizontal section, taken on line 6-6 in Figure 5. Figure 7 is a fragmentary longitudinal section of a portion of the transfer pan actuating mechanism.

Similar characters of reference are employed in all of the hereinabove described views, to indicate corresponding parts.

Referring now to said drawings, the ref creuce character 1 indicates a suitably con structedframe-work upon which are mounted the mechanisms making up the novel car ton or container charging machine. Supported in connection with and at one side of said frame-work 1 is a receiving tray 2, which is provided with a discharge opening 3 disposed to lead into a delivery funnel or chute 4 extending downwardly beneath said tray. material supply conduit 5 fl U leads from a material source to said'tray 2, the discharge mouth of said conduit being spaced from the bottom of said tray, and positioned adjacent to the discharge opening of the latter. Rotatably a ranged with in said tray 2 is a sweep 6, the same being afliXed to a vertical shaft 7, which is journaled in bearings 8 mounted upon the frame-work 1. Connected with said framework 1, in a proper location beneath the discharge end of said funnel or chute 4; is a shelf or tablet), upon which may be supported to cartons or other containers it is desired to fill.

Connected with said frame-wort; l is a transversely disposed bed-plate 16. Sup ported upon said bed-plate 10 are a pair of weighing balances or scales A and B, each of which comprises a fulcrum member ll upon which is balanced a beam member l2 provided on its outer end with an adjustable counterpoise 13, and having, suitably supported upon its opposite or inner one, a platform 1 1; provided with suitable side guards 15. Said weighing balances or scales A and B are so located in relation oneto the other that their respective platforms 1% are, while independent, nevertheless adjacent one to the other, or in other words, are laterally opposed one to the other or side by side, as shown more particularly in ure 1 of the drawings.

Connected with said fl'tili'lQ-WOIii 1 so as to be supported thereby and spaced upwardly above the bedplate 1G and weighing balances or scales A and B mounted thereon, is a second bed-plate 15, the san'ie having a pair of hatchways or openings 17 and 18, which are respectively alined with and above the platforms 1&- of the respective weighing balances or scale A and B. Journaled in bearings 19 supported upon said bed-plate 16 is a rock-shaft 20, which extends centrally and longitudinally from the front to the rear of said frame-work 1. Atlixed to said rock-shaft 20 is a transit pan QLha-ving side walls but open at its op posite ends and adapted to be oscillated from end to end by said rock-shaft so that its respective ends may be alternately downwardly inclined toward the respective hatch ways or openings 17 and 18 of said bedplate 16. Secured to the underside of said bed-plate 16 in. alinement respectively with said hatchways or openings 17 and 18 are downwardly directed spout members .and 23.

Supported in connection with said framework 1 is a funnel or chute 24:, the lower discharge end 25 of which is disposed above and alined with said transfer pan 21. Lead ing into the upper end of said funnel or chute 24: is a second material supply conduit '36 which leads from a material source. Arranged within the upper portion of said funnel or chute Ql is a bearing spider 27 in which is journaled a vertical spindle 28, upon the upper end of which is aflixed a rotary material receiving disk 25), which is disposed beneath and spaced sligl'itly below the discharge mouth of said material supply conduit 26. Fixed on said spindle 28 is a pinion 30. l lxtcndine into said funnel or chute through its side wall, is a shaft 31 upon which is fixed a driver pinion 32, which meshes with said pinion 30. Secured to the wall of said funnel or chute B lso that its free end tiit; ls inwardly over ihe top surface of the marginal portion of said material receiving disk 29 is a stationary plow 33, the body of which is suitably sloped or curved to deflect a portion of the material carried around by said disk outwardly off of the st face of the latter, so thatthc same falls downwardly through the funnel or chute 24-.

Rotatably mounted on the forward end of said rockhaft fill. and at the same time iournaled in s1 e bearings Si, is a hollow shaft or sleeve which is provided at its inner end with a f tion clutch disc 36. which is constai driven by the rotation of said shaft or slee 35. Fixed on said hollow shaft or sleeve in a Spl'OClIGi wheel 37. fdecnred upon said rock-shaft 20, adjacent to said friction clutch disc 36, is a clutchde ice 38 for cooperation with said driven friction clutch disc Said clutch-device 38 is provided with a friction-disc 39 yieldably mounted in connection therewith. 'll'oiatablv mounted on the re ward end of said roch-shaft E20, and at the same time inur .aled ii suitable bearings ill, is a hollow shaft or sleeve 35 'cr is provided at its inner end with a friction clutch disc 36h which is constantly driven by the rotation of said shaft or sleeve 35. Fixed on said hollow shaft or sleeve 35' is a sprocket whccl 37. Secured upon said rock-shaft 2th adjacent to said friction clutch disc 36, is a clutch device 38 for ceoperz-ition with s 'd. driven friction clutch disc 36. Eiaid clutcl device 38 is also provided with a friction disc 39 yieldablv mounted in connection therewith. Said hollow shafts or sleeves and 35 are respectivefv constantly driven in opposite directions The transmission means for driving 4. id hollow-shafts 0r sleeves S5 and 35, and a :o for actuating the material feed mechanism, may be of any character and of anv arrangement found convenient or lGSllLlJlQ consei'piently I do not limit myself precisely to the character of transmission mechanism shown in the drawings and hereinafter described. As shown in the drawings, the power transmission. may comprise the following arrangement. Mounted in suitable bearings 40, adjacent to the lower end of the frame work '1 of the machine is a main shaft 41 upon.

ll ll which is fixed a gear wheel 42. The power source may be in the form of an electric motor 43, upon the shaft of which is fixed a pinion or spur gear 44 which meshes with said gear wheel 42 to thereby drive said main shaft 41. Fixed on said main shaft 41 is a driving pulley 45. Mounted in bean ings 46 to extend transversely along the rear side of the frame-work 1 is a counter-shaft 47 upon which is fixed a pulley 48 over which runs a drive belt 49 driven by said driving pulley 45. Also mounted in suitable bearings 50 to extend transversely along the rear side of the frame-work 1, in a location above the level of said second bed-plate 16, is a second counter-shaft 51, which is driven from said first mentioned counter-shaft 47 by a chain and sprocket drive means 52. Mounted in bearings 53, to extend longitudinally adjacent to one side of said framework 1, is a jack shaft 54, and similarly mounted in bearings 58, to extend longitudinally adjacent to the opposite side of said frame-work 1, is a second jack-shaft 54'. Said counter-shaft 51 and the respective jack-shafts 54 and 54 are provided with intermeshing bevel gears 55, by means of which motion is imparted from said counter-shaft 51 to said jack-shafts 54 and 54, in such manner, that the said ack-shafts are respectively driven in opposite directions. The jack-shaft 54 is provided with a sprocket and chain drive 56, which cooperates with the sprocket wheel 37 to constantly drive the hollow shaft or sleeve 35 and friction clutch disc 36 in one direction, and the jack-shaft 54 is provided with a. sprocket and chain drive 56', which cooperates with the sprocket wheel 37 to constantly drive the hollow shaft or sleeve 35 and friction clutch disc 36 in the opposite direction. The transmission means for driving the spindle 7 to operate the sweep of the intermittent initial bulk material feeding means, comprises a jack-s iaft 57 which is driven from saidjackshaft 54' by means of a sprocket and chain drive 58. Fixed on said jack-shaft 57 is a worm member 59 which meshes with and drives a worm gear 60 fixed on said spindle 7. The transmission means for driving the spindle 28 of the weight-making material feeding means, comprises a jack-shaft G1 which is driven from the jack-shaft 54 by means of a sprocket and chain drive 62. Fixed on said jack-shaft 61 is a worm member 63 which meshes with and drives a worm gear 64 fixed on said spindle 28. The transmission means for driving the spindle 7 is subject to independent control for starting and stopping the initial bulk material feeding means through the agency of a suitable clutch mechanism 65 having actuating lever means 65, and which is adapted to cooperate between the sprocket and chain drive 58 and {he jaclesha ft .54"; and, similarly, the transmission means for driving the spindle 28 is subject to independent control for starting and stopping the weight-making material feeding means through the agency of a suitable clutch mechanism 67 having actuating le er means 68, and which is adapted to cooperate between the sprocket and chain drive 62 and the jack-shaft 54.

The means for automatically oscillating the transfer pan 21, to tip the same operativeiy toward on scale pan or the other of the respective weighing scale mechanisms A and B, conditions may require, comprises a pair of electro-magnets M and M, respectively mounted on the frame-work 1 adjacent to the respective ends of the rock shaft 20. h rock-shaft 20 is mounted so as to be capable of longitudinal shifting movement in either direction. Mounted on a fulcrum post 69, intermediate the electromagnct M and the forward end of said rockshaft 20, is a shift lever 7 0, having at one end an armature-piece 71 which coacts with the core of the electro-magnet M, and having at its opposite end a 7 to coact with an enlarged head 7 3 with which the forward extremity of the rockshaft 20 is provided. The electric circuit for the magnet M is controlled through a circuit make and break means associated with the weighing-scale A, the beam 12 of which is provided with a contact element 74 supported thereon but insulated from e ectric contact therewith by an insulation sleeve 75. lsfounted on the bed-plate 10 adjacent to said beam 12 of the weighing scale A, but suitably insulated from the be d-plate 10 by insulation 76, is a stationary contact post 77 with which the contact element 74 cooperates, to close an electric circuit 78 through the magnet hf, when the weighingscale A is actuated l y a filled carton or containcr having the desired predetermined weight. When the electric circuit through the magnet M is thus closed, the shift-lever is swung by the pull of the magnet upon the armature-piece 71, thus swinging out the bifurcated portion 72 to shift the rock-shaft 20 'i'orward. This forward movement of the rock-shaft 20 carries its clutch-member 38 into engagement with the driven clutchmember 36, thereby turning the rock-shaft 20 in one direction to shift the transfer pan 21 from a position operatively tipped toward the chute or spout member 22' serving the weighing scale device A, to a position operatively tipped toward the chute or spout member 28 which serves the weighing scale device B. Mounted on a fulcrum post 69, intermediate the electro-magnet M and the rearward end of said rock-shaft 20, is a shift lever 7 0, having at one end an armature piece 71 which coacts with the core of the clcctro-magx1et iii, and having at its opposite end a bifurcated P02. n 72 which bifurcated portion 6 straddles the rearward end of said rockshaft 20 to coact with an enlarged head 73 with which said rearward end of the rockshaft 20 is provided. The electric circuit for the magnet M is cont-rolled through a circuit make and break means associated with the weighing scale B, the beam 12 of which is provided with a contact element 74: supported thereon but insulated from electric contact therewith by an insulation sleeve 75. Mounted on the bed-plate 10 adjacent to said beam 12 of the weighing scale B, but suitably insulated from the bed-plate 10 by insulation 76', is a stationary contact post 77 with which the contact element 7% cooperates, to close an electric circuit 78 through the magnet M, when the weighing scale B is actuated by a filled carton or container having the desired predetermined weight. lVhen the electric circuit through the magnet M is thus closed, the shift-lever 70 is swung by the pull of the magnet upon the armature piece 71, thus swinging out the bifurcated portion 72 to shift the rock-shaft 20 rearward. This rearward movement of the rock-shaft 20 carries its clutch-member 38 into engagement with the driven clutch member 36, thereby turning the rock-shaft in the opposite direction to shift the transfer-pan 21 from a position operatively tipped toward the chute or spout member 23 serving the weighing scale B, back to a position operatively tipped toward the chute or spout member 22 which serves the weighing scale A. The electric circuits through the magnets M and M and the circuit closing devi es therefore, which are automatically actuated by the operative movements of the weighing scale mechanisms A and B, as above described, will be clearly understood from an inspection of Figure 3 of the drawmgs.

Running rearwardly from the scale platform 14 of each weighing scale A and B is a conveyer belt 79 which extends to are ceiving platform 80 supported upon a rearward extension of the frame-work 1. Said conveyer belts run over supporting pulleys 81 which are fixed upon transverse shafts 82 journaled in suitable bearings 83. The conveyer belts are driven from the countershaft 47 by a sprocket and chain drive 84. Intermediatethe receiving ends of the con veyer belts 79 and the adjacent weighing scale platforms 14 are small transfer rollers 85 mounted on a transverse shaft 86 and driven by a sprocket and chain drive 87. Bordering the sides of said conveyer belts 9 are rearwardly extending guard members 88. which. prevent lateral displacement of filled cartons or containers from the conveyer belts.

Having thus described the construction and arrangement of the various devices and parts making up the novel carton or con tainer charging machine, I will now briefly describe the operation of the same. Two operatives are stationed at the machine: One at the side of the shelf or table 9 to pass the empty cartons or containers to the initial bulk material feeding means, and the other in front of the shelf or table 9 to place the initially filled cartons or containers on the platforms ll of the weighing scales A and B. The first operative takes an empty carton C and holds the open end beneath the outlet of the funnel 42 until an arm of the sweep 6 asses under the supply conduit 5 and sweeps an initial bulk of the material across the tray 2 to the opening 3 leading into the funnel 4, whence such initial bulk of material is delivered into the carton. Soft sugar and similar moist materials may be thus delivered by the conduit 5 to the tray 2. such moist materials do not flow readily or spread freely. it follows that a predetermined initial bulk of the; same may be roughly measured by spacing the outlet of the conduit 5 above the surface of the tray 2 such distance as will permit the free downward projection from the conduit outlet of a bulk of material of desired predetermined amount or quantity. The sweep 6 will by its movement beneath the outlet of the con duit readily detach the predetermined initial bull; from the main mass descending the latter, and will sweep the same into the fun nel The operation will be intermittent as the respective arms are successively brought into contact with the materialby the rotation of the sweep. As soon as one projected initial mass or bull; of material is swept away from beneath the conduit 5, gravitation of the material in the conduit 5 replaces the same with a successive outwardly projected initial bulk into the path of the succeeding arm of the sweep 6. As soon as one carton is filled the operative replaces it with another empty carton and so on, the initially filled cartons being pushed along the shelf or table 9 toward the second operative.

The second operative takes the initially filled cartons from the shelf or table 9 and inserts one on the platform 14 of the weighing scale A and one on the platform 14 of the weighing scale B. Assuming that the transfer pan 21 is in position to first serve the carton placed on the platform of the weighing scale A, the material gravitating through the funnel or chute 2 1- is directed thereinto by said transfer pan. The material receiving disk 29 receives the mate rial descending through the conduit 26, and as the disk 29 rotates the marginal portions of the column of material stopped by the receiving disk 29, are carried, by the rotation of the latter, into engagement with the plow 33, by means of which a comparatively small Since W do quantity of the material is continuously deflected so that the same into the funnel 24:, thus inducing the continuous flow through the funnel 2a of a small stream of material of comparatively small mass. This small stream of material flows out of the funnel as into the transfer an 21, and is delivered thereby through the chute 22 into the partially filled carton on the weighing scale A. As soon as this car ton accumulates from such source of continuously flowing material a suflicient additional quantity to bring its total content up to the desired weight, the weighing scale beam 12 is tilted in the usual manner. The operative tilting of the scale beam causes the circuit closing devices 74: and 77 to engage, thus closing the circuit through the electromagnet M, with the result that the rockshaft 20 is operated to turn the transfer pan 21 so as to tip or tilt the same in the opposite direction to deflect the flow of material into the partially filled carton on the platform of the weighing scale B. While the latter carton is receiving the material, the operative takes another initially or partly filled carton, and inserts it between the guards 15 of the platform 14 of the weighing scale A, and in so doing shoves the first completely filled carton against the roller 85, which transfers the same to the conveyer belt 7 9 by which it is carried to the receiving table 80 to be thence taken, closed, and packed in cases for shipment. In the meantime, the material enters the carton on the platform of the weighing scale B until the proper weight is accumulated, whereupon the scale beam thereof is tilted, the contacts 7% and 77 engaged to deliver current to the electromagnet M, whereby the rock-shaft is operated to turn back the transfer pan 21 so as to tip or tilt the same back to a position so as to deflect the fiow of material into the succeeding awaiting carton placed on the platform of the weighing scale A. The above described operations are continued ad libitum by the operatives.

From the above description it will be quite evident, that this invention provides a novel semi-automatic machine for filling cartons with material apportioned finally by weight. The mechanism is comparatively simple in character, and is peculiarly adapted to be used in filling cartons or other containers with granular materials, which contain more or less moisture or which for other reasons, tends to flow sluggishly, or to lump, or to offer other difficulties in handling, although I do not necessarily limit my novel machine to use in connection with such moist granular material, since it may also be efiectively used for dry pulverant or granular materials, which offer little resistance to free and easy flow.

1 wish to call attention to the fact, that drops off of the disk although I have described the construction and use of the initial bulk filling device, and believe it to be of considerable advantage to provide the machine with the same, particularly when utilizing the machine to handle moist granular material, I, nevertheless, intend that the scope of this invention shall not be limited entirely to combinations including said initial bull: filling devices, since it is quite possible to advantageously use the weighing scale mechanisms, transfer-pan and continuous material feed as the sole means for charging or filling the carton with 1ts entire content.

I am aware that some changes may be made in the arrangements and combinations of the various devices and parts of the novel carton charging machine, as well as in the details of the construction of the same, without departing from the scope of this invention as set forth in the foregoing specification, and as defined in the appended claims. Hence, I do not limit my invention to the exact arrangements and combinations of the several devices and parts as described in said foregoing specification, nor do I confine myself to the exact details of the construction of said parts as illustrated in the accompanying drawings.

1 claim 1. In a machine for filling containers by weight, a pair of weighing scale mechanisms to receive containers to be filled, a transfer-pan, means actuated by operative movement of said weighing scale mechanism for oscillating said transfer-pan to alternately. position the same in material delivering relation to one or the other of said weighing scale mechanisms, a material delivery funnel positioned to discharge into said transfer-pan, a material feeding conduit above said funnel, a receiving-disc within the upper open end of said funnel and alined beneath the outlet of said feeding conduit, means for rotating said receivingdisc, and a stationary plow for deflecting the material from said receiving-disc for gravitation through said funnel into said transfer-pan.

*2. In a machine for filling containers by weight, a pair of weighing scales to receive containers to be filled, each weighing scale including a pivoted counterpoised scale beam having at its inner end a container supporting platform, an oscillatable transfer-pan, actuating means for tilting said transfer pan in one direction to deliver material to a container supported by one weighing scale, actuating means for tilting said transfer-pan in the opposite direction to deliver material to a. container supported by the other weighing scale, means actuated by the operative movements of said n-eighing scales for controlling the respective transferpan actuating means, a material delivery funnel positioned to discharge into said transfer-pan, a material feeding conduit above said funnel, a receiving-disc within the upper open end of said funnel and alined beneath the outlet of said feeding conduit, means for rotating said receiving-disc, and a stationary plow for deflecting through said funnel into said transfer pan.

3. In amachine for filling containers by weight, a pair of weighing scales to receive containers to be filled, each weighing scale including a pivoted counter-poised scale beam having at its inner end a container supporting platform, an oscillatable trans fer-pan, transmission means for tilting said transfer-pan in one direction to deliver material to a container supported by one weighing scale, transmission means for tilting said transfer-pan in the opposite direction to deliver material to a container supported by the other weighing scale, an electro-inagnetic means for controlling each transmission means, an electric circuit serving each electro-magnctic means, circuit clos ing means for each electric circuit respectively actuated by the operative movement of the scale beam of one weighing scale to energize the electro-magnetic means controlling the transmission means for tilting said transferpan into operative relation to the other weighing scale, a material delivery funnel positioned to discharge into said transferpan, a material feeding conduit above said funnel, a receiving-disc within said funnel and alined beneath the outlet of said feeding conduit, means for rotating said receiving-disc, and stationary plow for deflecting the material from said receiving-disc for gravitation through said funnel into said transfenpan.

l. In a machine for filling containers by weight, a: pair of weighing scales to receive containers to be filled, each weighing scale including a pivoted counter-poised scale beam having at its inner end a container supporting platform, an oscillatable transfer-pan, transmission means for tilting said transfer-pan in one direction to deliver material to'a container supported by one weighing scale, transmission means for tilting said transfer-pan in the opposite direction to deliver material to a container supported by the other weighing scale, an electro-magnetic means for controlling each transn1is sion means, an electric circuit serving each eleetro-magnetic means, circuit closing means for each electric circuit respectively actuated by the operative movement of the scale beamv of one weighing scale to energize the electro-magnetic means controlling the transmission means for tilting said transfer-pan into operative relation to the other weighing scale, and means for delivering material to said transfer-pan, and a conveyer means leading from each weighing scalemechanism to receive the filled containers.

5. In a machine for filling containers by weight, a pair of weighing scale mechanisms to receive containers to be filled, a transferpan, means actuated by operative movements of said weighing scale mechanisms for oscillating said transfer-pan to alternately position the same in material delivering relation to one or the other of said Weighing scale mechanisms, a material delivery funnel positioned to discharge into said transferp an, a material feeding conduit above said funnel, a receiving-disc within said funnel and alined beneath the outlet of said feeding conduit, means for rotating said receivingdisc, a stationary plow for deflecting the material from said receiving-disc for gravitation through said funnel into said transferpan, and a conveyer means leading from each weighing scale mechanism to receive the filled containers.

6. In a machine for filling containers by weight, a pair of weighing scales to receive containers to be filled, each weighing scale including a pivoted counter-poised scale beam having at its inner end a container supporting platform, an oscillatable transfer-pan, transmission means for tilting said transfer-pan in one direction to deliver material to a container supported by oneweiglr ing scale, transmission means for tilting said transfer-pan in the opposite direction to deliver material to a container supported by the other weighing scale, an eleetro-magnetie means for controlling each transmission means, an electric circuit serving each electro-n'iagnetic means, circuit closing means for each electric circuit respectively actuated by the operative movement of the scale beam of one weighing scale to energize the electro-magnetic means controlling the transmission means for tilting said transferpan into operative relation to the other weighing scale, a material delivery funnel positioned to discharge into said transferpan, a material feeding conduit above said funnel, a receiving-disc within said funnel and alined beneath the outlet of said feeding conduit, means for rotating said receiving disc, a stationary plow for deflecting the material from said receivingdisc for gravitation through said funnel into said trans fer-pan, and a conveyer means leading from each weighing scale mechanism to receive the filled containers.

7. In a weighing machine, a pairofweighing scales to each weighing scale including a pivoted counterpoised scale beam having at its inner end a container supporting platform, an oscillatable transfer pan, a rock shaft on which said pan is fixed, actuating means including a continuously rotating clutch element for tilting said transfer pan in one receive containers to be filled,

direction to deliver material to a container supported by one Weighing scale, a second actuating means including a continuously and oppositely rotating clutch element for tilting said transfer pan in the opposite direction to deliver material to a container supported by the other Weighing scale, said rock shaft having clutch elements to cooperate With said respective rotating clutch elements, said rock-shaft being shiftable longitudinally in either direction to bring either one or the other of its clutcl'i elements into operative engagement with its ccoperating rotating clutch element, and means actuated by the operative n'nwei its of said weighing scales for shifting said roclr i:

8. In a Weighing machine, a pair of \vei ing scales to receive containers to be each Weighing scale including a counterpoised scale beam having at imrr end a container supporting pizjljorm, an oscillatable transfer pan, a rock shaft on which said pan is fired, actuating r ieans including a continuously rotating clinch element for tilting said transfer pan in one direction to deliver material to a conta'- supported by one weighing scale, a second actuating means including a continuously 'and oppositely rotating clutch GlGll'lGllt for tilting said transfer pan in the opposite direction to deliver material to a contair supported by the other Weighing scale, said rock shaft having clutch elements to cooperate with said respective rotating clutch elements, said rock-shaft being shiftable longitudinally in either direction to bring either one or the other of its clutch elements into operative enga ement *ith its cooperating rotating clutch elen'ient, means actuated by the operative movements of said Weighing scales for shifting said rec; shaft, and means for delivering material to said transfer pan.

9. In a Weighing machine, apair of weighing scales to receive containers to be filled, each Weighing scale including a pivoted counterpoised scale beam having at its inner end a container supporting platform, an oscillatable transfer pan selectively tilt-able to deliver material into a container supported by one or the other of said weighing scales, a longitudinally shiftable rock shaft on Which said pan is fixed, transmission means including a continuously rotating clutch element for tilting said t 'ansfer pan in one direction, a second trainnnission means including a continuously and oppositely rotating clutch element for tilting said transfer pan in the opposite direction, said roci; shaft having clutch elements to cooperate with said respective rotating clutch elements.

0 tive relation to the other Weighing scale.

10'. In a Weighing machine, a pair of weighing scales to receive containers to be filled, each Weighing scale including a pivoted '01il1i011)l5l scale beam having at its inner a it 1a 1 supporting platform, an ransfer pan selectively tlltable n'iaterlal into a contamer supiit lly shift-able rock shaft on which said pan is fixed, transmission means including a continuously 'rotating clutch elen'ieut for tilting said transfer pan in one direction, a second transmission means including continuously and oppositely rotating clutchelemeut for tilting said transfer can in the opposite direction, said rock shaft having clutch elements to cooperate with said respective rotating clutch elements, electro-magnetically actuated means for shifting said roclcshaft respectively in one (lll'QCdlOil or the other, an electric circuit serving each electro-magnetically actuated means, circuit clos ng means for each circuit respectively actuated by the operative movement of he scale beam of one Weighing scale to energize the electro-magnetically actuated means controlling the shifting of said rock shaft into clutched relation with tie transmission means to produce tilting of said transfer pan into operative relation to the other Weighin scale, and means for continuously delivering material to said transfer pan.

11. in a machine of the kind described, a means for deliver" 1g a continuous flow of material, comprising a delivery funnel, a material feeding conduit above the upper open mouth of said funnel, a rotatable receivingeisc Within said funnel and aline'd beneath the outlet of said feeding conduit, lllQullS for rota'ing said receiving-disc, and a stationan, plow for deflecting the material from said receiving-disc for gravitation into and through said funnel.

in testimony that 1 claim the invention set forth above have hereunto set my hand this second day of April, 192%.

BERGER l DE VRiES. 

